mannide
/ˈmanʌɪd/Chemistry
noun
Either of two isomeric bicyclic anhydrides (C6H10O4) of mannitol, originally obtained by the action of butyric acid on mannitol.
Origin
Mid 19th century; earliest use found in Henry Watts (1815–1884), chemist. From French mannide from manne + -ide, after mannite mannite.